摘要
介绍一个开放式、研究性实验,即一种锌锰纸电池的制备方法,并对其正极材料对放电性能的影响进行研究。测定了2种MnO2的稳定电位和极化曲线,确定了较好的一种作为纸电池的正极活性物质;测定了含不同比例的乙炔黑、石墨及改性剂纳米TiO2的电池放电曲线,分别确定了其在正极材料中的最佳比例;研究了不同电池表面积对电池电容量的影响,计算了电池正极活性物质的利用率。实验具有综合性、新颖性、趣味性和实用性等特色。
This article introduces an investigative experiment in open teaching model ,which is researching a preparation process for Zn- Mn paper battery ,and studying the impact of cathode material on its discharge properties .Stable potentials and polarized curves for two kinds of MnO 2 are measured in order to choose the better one as the cathode active substance of paper battery ,and a series of discharge curves for batteries containing different percentage of acetylene black ,graphite and the modifier ,nano-titanium dioxide are also plotted in order to determine the best percentage used in cathode material .The influence of battery area upon the electric capacity of battery is finally studied ,and the utilization ratio of cathode active substance of battery is calculated at the same time .
出处
《实验技术与管理》
CAS
北大核心
2014年第2期163-167,共5页
Experimental Technology and Management
基金
中山大学实验教学研究(改革)基金项目(YJ201114)
中山大学实验室开放基金项目(KF200601)
关键词
纸电池
正极材料
活性物质
放电曲线
paper battery
cathode material
active substance
discharge curve
